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Finding the Fourth Proportional to 34,603.82, 51,912.67 and 12,418.94

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Solution

The fourth proportional to 34,603.82, 51,912.67 and 12,418.94 is: 18,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,603.82 : 51,912.67 = 12,418.94 : x
  2. Step 2: Convert to fraction form
    34,603.82/51,912.67 = 12,418.94/x
  3. Step 3: Cross multiply
    34,603.82x = 51,912.67 × 12,418.94
  4. Step 4: Simplify right side
    34,603.82x = 644,700,198.91
  5. Step 5: Solve for x
    x = 644,700,198.91/34,603.82
  6. Step 6: Final answer
    x = 18,630.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.